We love conspiracy theories, and history has left us an abundance of good ones. Now bestselling thriller writer and history decoder Brad Meltzer takes a closer look at ten of the all-time best conspiracy theories, in his book “History Decoded.”

From the rumors that there really isn’t any gold in Fort Knox, to the mystery of D.B. Cooper, all the way up to — dare we say it? — the Kennedy assassination, Meltzer puts fresh eyes to old theories and comes up with answers that are often startling.